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Should you go all-in on hyper-convergence technology?
This article is part of the Storage magazine issue of April 2017, Vol. 16, No. 2
As solid-state storage has supplanted the venerable hard drive as primary storage, we've come to realize a number of deficiencies in the RAID array model. Compared to local storage, RAID arrays deliver millisecond delays to all I/O operations and, while this was acceptable when HDD access times ran to tens of milliseconds, it becomes extremely inadequate when, for example, a local nonvolatile memory express (NVMe) SSD can deliver data within 100 microseconds. In the meantime, rebuild times for failed HDDs proved longer than the average time to failure of another drive in the array. This would eventually lead to data loss. RAID 6, with a second parity drive, tempered the issue for awhile. But increases in capacity above 4 TB made even dual-parity loss-prone. These inadequacies, among others, forced the storage industry to change course, steering us toward hyper-convergence technology. The road to hyper-convergence The logical response to the performance and reliability issues revealed by the deployment of flash was to shift from ...
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Features in this issue
Cloud is popular among data storage priorities for primary and backup storage, while most say they will use flash in primary data storage.
As unstructured data continues to lead storage growth, businesses are opting for scale-out NAS arrays to handle current and future capacity.
Hyper-converged storage reduces TCO, simplifies installs and is poised and ready for the software-defined data center.
Storage smartens up to keep pace with data-intensive business applications embedding operational analytics capabilities.
Columns in this issue
Once considered a necessary evil, secondary storage systems are now providing much more than just backup protection.
The next chapter written in the book of computer science should be all about management of copy data, the core function of IT.
Questions to ask when deciding which cloud services to use for backup, disaster recovery and other parts of your data protection strategy.
Scale-out software-defined storage is on the rise to the detriment and decline of traditional storage products and arrays.